| Preliminary design review | Scientific objective |
| Science requirement / system requirement |
| Schedule |
| Role and responsibilities |
| Work break down |
| Risk management plan |
| Critical design review | Optical design |
| Mechanical design |
| Assembly plan, alignment plan, test plan |
| Observation plan |
| Answers on the PDR action item |
| Part list for observation |
| Observation readiness review | (Detailed) Part list for observation |
| (Detailed) Observation plan |
| Data processing plan |
| Answers on the CDR action item |
| Final presentation | Science result |